JPH103141A - Paper feeding magazine for recording material roll - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paper feeding magazine for a recording material roll which can be easily worked and is excellent in strength and durability, light in weight and easy to handle, at a low cost. SOLUTION: The paper feeding magazine is provided with a square cylindrical body part 2 consisting of a hollow resin plate having a large number of long, narrow hollow parts sectioned by a large number of lined-up partitions and side surface members 3 and 4 for covering both open ends of the body part 2 respectively. The recording material roll 5 is housed in the body part 2. Four comers extended in the longitudinal direction of the body part 2 are bent along bending lines formed by a thermal ruled line press.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording material roll magazine for accommodating a recording paper roll formed by rolling a sheet-like recording material into a roll.

[0002]

2. Description of the Related Art A recording material roll in which a long sheet-shaped recording material is wound around a core is supplied. The recording material roll is rotatably held inside the recording material roll, and the recording material is sequentially pulled out from an outlet. Paper magazines are widely used.
Conventionally, a disposable paper feed magazine made of corrugated cardboard has been generally used as such a paper feed magazine for recording material rolls because of its easy handling. Further, in order to compensate for the drawbacks such as strength and shrinkage of corrugated paper, a plastic paper feed magazine is also used.

However, in response to the increasing public awareness of waste reduction in recent years, a reuse type paper feed magazine that enables refilling of recording material rolls has been used in part. In such a reuse type paper feed magazine, the main body of the paper feed magazine is formed of metal or plastic from the viewpoint of durability. For example, as a paper feed magazine formed of plastic, a paper feed magazine formed by extrusion molding (JP-A-6-130569) and a paper feed magazine formed by injection molding (US Pat. No. 5,232,175) are known.

[0004]

However, as described above, a metal or plastic paper feeding magazine has excellent durability, but has a problem that the weight of the entire paper feeding magazine is large and it is difficult to handle. . In particular, in the case of a repeatedly used paper feed magazine, in order to refill the recording material roll, it is necessary to particularly provide a hinge portion so that the paper feed magazine can be opened and closed, thereby increasing the manufacturing cost due to an increase in the number of components. I was

[0005] In addition, a plastic paper feed magazine has the problem of having to change the mold for each size and has problems such as distortion and warping after molding. There has been a demand for a paper feed magazine having both the ease of processing equal to or higher and the durability equal to or higher than that of a plastic feed magazine.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and is capable of being easily processed, having excellent strength and durability, being lightweight, and being easy to handle. The purpose is to provide a magazine at low cost.

[0007]

In order to achieve the above object, in a paper feed magazine for a recording paper roll according to the present invention, the whole is integrally formed by extrusion molding of a synthetic resin, and a large number of parallel extending in the extrusion direction. Slit for drawing out the recording material to one of four corners extending in the longitudinal direction of a body of a rectangular cylinder formed of a hollow resin plate having a large number of elongated hollow portions separated by partitioned walls. And the remaining three corners are bent along a bending line formed by a hot creasing press.

According to a second aspect of the present invention, one of the two plate-shaped portions sandwiching the hollow portion of the hollow resin plate is cut, and at least one hinge portion connected only by the other plate-shaped portion is connected.
It is formed in three places. In the third aspect, the cutting edge angle of the hot crease press is set to 70 ° to 150 °. According to a fourth aspect, at least one or more of the bending lines are curved inwardly of the body. In the fifth aspect, the hollow resin plate is formed by integrally extruding polypropylene as a whole.

[0009]

FIG. 1 is an exploded perspective view of a paper feed magazine for a recording paper roll embodying the present invention, and FIG. 2 is an external perspective view thereof. The paper feed magazine 1 includes a rectangular cylindrical body 2 and side members 3 and 4 that cover both open ends of the body 2, and a recording material roll 5 is housed inside the body 2. You. The recording material roll 5 is formed, for example, by winding a photosensitive sheet-shaped recording material 5a around a core 5b.

A hollow resin plate as shown in FIG. 3 is used as a material forming the body 2. The hollow resin plate 11 is manufactured by, for example, extruding a mixture of polypropylene resin and carbon for light shielding. The hollow resin plate 11 includes upper and lower plate portions 12a and 12b and
It is composed of a number of parallel walls 14 extending in the molding extrusion direction (the direction of arrow A in FIG. 3) connecting the 2a and 12b.

Inside the hollow resin plate 11, a plate-like portion 1 is provided.
A large number of elongated hollow portions 13 are formed, which are divided by 2a, 12b and a large number of partition walls 14. Since such a hollow resin plate 11 has a large number of hollow portions 13 formed therein, the weight per unit area is extremely light as compared with a normal resin plate in which the inside is not hollow. And since it has many parallel partition wall 14 extended in the molding extrusion direction, it is excellent in intensity | strength and durability compared with the resin plate of the same weight.

The body 2 is formed by forming a plurality of bending lines shown in FIG. 4 on the hollow resin plate 11 cut into a prescribed size. Folding lines 15a to 15h are formed in the body 2 made of the hollow resin plate 11. By bending the hollow resin plate 11 along the bending lines 15a to 15h, the bottom surface 11a and the front surface 1
1b, the rear surface 11c, the upper surface 11d, and the outlet 16 are formed.

Among the folding lines 15a to 15h, all the folding lines 15a to 15c, except the folding line 15d provided at the boundary between the bottom surface 11a and the back surface 11c.
15e to 15h are curved lines curved inwardly of the body portion 2. Such a curved bending line 15
The radii of curvature of a to 15c and 15e to 15h are, for example, 1000
112000 mm, and the maximum offset value indicated by ΔB in FIG. 4 is 1 to 10 mm. In addition, the drawer surface 11e
The bending lines 15g and 15h constituting the vicinity may be straight bending lines without being particularly curved.

Such a bending line 1 curved in an arc shape.
5a to 15c and 15e to 15h are formed by a heat presser 21 as shown in FIG. The heat presser 21, which is a thermal crease press, has bending lines 15a to 15a.
The press tool 22 has a cutting edge 22a having the same radius of curvature as that of 5c, 15e to 15h, and a heater 23 for heating the press tool 22. FIG. 5B is a plan view when the heat presser 21 is viewed from the blade edge portion 22a side of the push die.

When forming the bent lines 15a to 15c and 15e to 15h using such a heat presser 21, first, a current is supplied to the heater 23 to reach a temperature at which the resin constituting the developing plate 3 is softened. The pressing mold 22 is heated until the pressing. Then, the cutting edge 22a of the pressing die 22 is attached to the bottom plate 10
5A against the boundaries of the long side plates 4 and 5.
As shown in FIG. 5, by forming an edge so that one plate-shaped portion 12a of the hollow resin plate 11 is recessed toward the other plate-shaped portion 12b, this portion can be easily bent, and the bending lines 15a to 15b can be bent easily. 15c, 15e to 15h are formed.

At the time of forming the fold line by the heat presser 21, in order to keep the thickness of the fold line portion constant and not to make this portion thinner than necessary, a 0.1 to 1 mm spacer is formed in the hollow portion where the fold line is formed. Should be inserted. In this embodiment, a 0.5 mm spacer is used. The formation of the straight bending line 15d is performed in the same procedure by using the heat presser 21 in which the tip of the pressing die is straight.

When the bending line is formed by the heat presser 21, the hollow resin plate 11 may be distorted and stretched. For this reason, the hollow resin plate 11 on which the bending lines are formed is annealed at, for example, 100 ° C. or more, thereby eliminating distortion of the hollow resin plate 11 and preventing stretch. Also, the hollow resin plate 11
Is forced to warp, the state of the hollow resin plate 11 can be stabilized.

On the back surface 11c of the body 2, the body 2
Is formed to allow the hinge to be opened. As shown in FIG. 6, the hinge portion 17 is
In the hollow portion 13, one of the plate portions 12a and 12b is cut. With this hinge portion 17,
From the bottom surface 11a and the front surface 11b of the body portion 2, a part of the back surface 11c and the upper surface 11d are rotatable, and the upper surface of the body portion 2 is opened, so that the recording material roll 5 can be replaced.

Telemps 18 as light-shielding members are adhered to drawer surfaces 11e and 11f forming drawer openings 16 provided in the body portion 2, respectively. The telem 18 is a well-known telem in which a large number of resin hairs are implanted in a resin sheet, and prevents external light from entering the paper feed magazine 1 from the outlet 16.

Side members 3 and 4 for covering both open ends of body 2
Consists of upper side members 3a and 4a and lower side members 3b and 4b, respectively, with the hinge 17 and the outlet 16 as boundaries. Among them, the upper side members 3a and 4a are engaged with the upper side of the hinge portion 17 of the rear surface 11c and the ends of the upper surface 11d, and the lower side members 3b and 4b are positioned below the hinge portion 17 of the rear surface 11c. Engage with the bottom 11a and the end of the front 11b. These upper side members 3a, 4a and lower side member 3
b and 4b are engaging portions 2 for holding the body portion 2 in the thickness direction.
0 is provided integrally and engages with the side end portion of the body portion 2. The engaging portion between the body portion 2 and the engaging portion 20 is bonded with an adhesive such as a hot melt type.

Near the center of the side members 3, 4, a bearing 3 is provided.
1 and 32 are formed, respectively, and support the rotating cores 33 and 34, respectively. The rotating cores 33 and 34 are inserted into a winding core 5 a of the recording material roll 5 and hold shafts 3 that hold the recording material roll 5.
3a, 34a and the holding shafts 33a, 33b
Engaging shafts 33b and 34 rotatably mounted on the shafts 1 and 32, respectively.
b. The recording material roll 5 is rotatably held in the paper feed magazine 1 by the rotary cores 33 and 34. The holding shafts 33a, 34a and the engagement shafts 33b,
After being molded separately, they are integrally fixed by ultrasonic welding or the like to form the rotating cores 33 and 34.

As a supply form of the recording material roll 5 stored in the paper feed magazine 1, for example, there is a cardboard box 41 of a horizontal opening type as shown in FIGS. The cardboard box 41 includes fixing members 42 a, which engage with the winding core 5 b and prevent the recording material roll 5 from moving in the cardboard box 41.
The recording material roll 5 sandwiched by 42b is loaded by opening the side cover 45, and after the loading, the side cover 45 is
7 is sealed. At the time of use, the side-opening zipper 43 of the cardboard box 41 is pulled out to remove it, and the recording material roll 5 is taken out from the opened upper surface and set in the paper feed magazine 1.

Next, the operation of the paper feed magazine having the above configuration will be described. When manufacturing the paper feed magazine 1 of the present invention, first, the bending lines 15a to 15h are formed on the hollow resin plate 11 cut into a predetermined size. When the heater 22 of the heat presser 21 is energized and the pressing die 22 reaches a predetermined temperature, the cutting edge 22a is pressed to a predetermined position, and the curved bending lines 15a to 15
c, 15e to 15h and a straight bending line 15d are formed. At this time, a spacer is inserted in advance in the portion where the bending line is formed, and the amount of depression of each bending line is made constant.

Thus, the heated heat presser 2
1a is easily pushed to a predetermined position,
5h are formed. Next, in order to remove distortion generated at the time of forming the bending lines 15a to 15h, the hollow resin plate 11 is removed.
For 10 minutes at 110 ° C., for example.

A hinge portion 17 is formed on the back surface 11c of the hollow resin plate 11 that has been subjected to the annealing process. Hinge part 17
Can be easily formed only by cutting one of the plate-like portions 12a and 12b of the hollow resin plate 11.
In this manner, the hinge portion of the paper feed magazine 1 can easily open and close the body portion 2 by simply cutting a part of the hollow resin plate 11 without using a new component such as a hinge. it can.

As described above, the hollow resin plate 11 on which the bending line and the hinge portion have been processed is provided with the bending lines 15a to 15a.
After being bent along the line h, the telempe 18 is attached to each of the drawer surfaces 11e and 11f forming the drawer opening 16, and the body 2 is completed.

Next, side members 3 and 4 are attached to both open ends of the body 2. The upper surface members 3a and 4a and the lower surface member 3 are separated from the hinge portion 17 and the outlet 16 respectively.
Both open ends of the body portion 2 are engaged with the engaging portions 20 provided on the b and 4b, and are bonded with an adhesive such as a hot melt type.

Paper feed magazine 1 assembled in this way
Are curved bending lines 15a to 15c, 15e to 15
h, each surface of the body 2 is slightly curved inward,
Even when used for a long time, each surface of the body 2 does not bulge outward.

Further, by using the hollow resin plate 11 for the body 2, the body 2 is much lighter in weight than the case where the body is formed using a normal resin plate whose interior is not hollow. In addition, since the strength and durability are improved, a paper feed magazine 1 having both ease of processing equal to or higher than that of a cardboard paper feed magazine and durability equal to or more than that of a plastic feed magazine is provided. Can be.

When the recording material roll 5 is stored in the paper feed magazine 1, the zipper 43 is pulled forward from the cardboard box 41 of the horizontal opening type shown in FIGS. 7 and 8, and the recording material roll 5 is taken out. . Next, the upper part 11d and a part of the rear face 11c of the body part 2 are rotated together with the upper side members 3a and 4a about the hinge part 17 of the paper feed magazine 1 as a rotation center, and the body part 2 is opened. Core 5b of recording material roll 5
Holding shafts 33 constituting the rotating cores 33, 34 at both ends of the
a and 34a are pushed in. And the rotating cores 33, 3
The recording material roll 5 is set in the paper feed magazine 1 so that 4 engages with the bearings 31 and 32 of the side members 3 and 4 respectively. The recording material roll 5 is rotatably held in the paper feed magazine 1.

Thereafter, the upper side members 3a and 4a are rotated to seal the body portion 2. At this time, the upper side members 3a, 4
The locking of the lower surface members 3b and 4b with the lower surface members 3b and 4b may be performed with the clip 10 or the like shown in FIG. Such a clip may be made of any material such as metal or resin. For example, when the clip is engaged with a metal clip of a miniature catch (made by TAKIGEN), it can be sufficiently fixed.

Then, from the recording material roll 5 to the recording material 5
a may be fed out a small amount, and the leading end of the recording material 5a may be put out of the paper feed magazine 1 through the drawer opening 16. As described above, the paper supply magazine 1 can easily use the recording material roll repeatedly by a simple mechanism. By setting such a paper feed magazine 1 in a recording device such as a photographic printer, the recording material 5a is supplied smoothly.

[0033]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As an example of the size of the paper feed magazine 1, the range of the width W shown in FIG. 2 is 100 to 700 mm, for example, 640 m.
m is selected. The range of depth T and height H is 10
0 to 300 mm, for example, 168 mm is selected.

The inner diameter of the core 5b of the recording material roll 5 stored in the paper feed magazine 1 of such a size example is, for example,
The outer diameter of the portion of the holding shafts 33a, 34a penetrating into the core 5b is also approximately 70 mm.

The maximum offset value of the curved folding line indicated by ΔB in FIG. 4 is set between 0.5 and 5 mm,
Preferably it is 0.5 to 3.5 mm, more preferably 0.5 to 2.5 mm. Note that such ΔB is
The values are set as shown in Table 1 according to the width W of the paper feed magazine 1.

[0036]

[Table 1]

The cutting edge angle B of the cutting edge portion 22a of the heat presser 21 shown in FIG. 5 is set between 70 ° and 150 °, and is preferably between 85 ° and 135 °. More preferably, it is 90 ° to 110 °. The temperature of the pressing die 22 of the heat presser 21 may be any number as long as the hollow resin plate 11 is softened or melted. For example, when the cutting edge angle B is between 90 ° and 135 °, 180
C. to 300 C. are selected. More preferably 240 ° C or more
280 ° C is selected.

After the bending line is formed by the heat presser 21, the annealing process performed on the hollow resin plate 11 is performed at 100 ° C. for 10 minutes or more, for example, at 110 ° C.
, A processing condition for 10 minutes is selected.

The material constituting the hollow resin plate 11 is as follows.
For example, polypropylene is selected. Polypropylene, density range is selected those 100 to 2000 g / m ^2, preferably selected ones 500-1500 g / m ^2. More preferably, 800 to 1300 g / m ² is selected. Examples of such polypropylene include "Mitsubishi Polypropylene BC8" (trade name: manufactured by Mitsubishi Chemical), "Mitsubishi Polypropylene ECX" (trade name: manufactured by Mitsubishi Chemical), and the like.

Examples of carbon to be mixed with the material constituting the hollow resin plate 11 in order to impart light shielding properties to the body portion 2 include, for example, “Mitsubishi Carbon 41” (trade name: manufactured by Mitsubishi Chemical Corporation) and “Mitsubishi Carbon Corporation”. 44 "(trade name: manufactured by Mitsubishi Chemical Corporation)
Etc. The mixing ratio of these carbons is selected, for example, in the range of 0.5 to 10%, preferably 7.5%.
It is.

The hinge portion 17 provided on the back surface 11c of the body portion 2 has a hollow resin plate 11 in which the plate portion 12
In this state, the hinge portion 17 is not cut even after 100,000 bending tests.

As an adhesive for bonding the hollow resin plate 11 with hot melt, such as bonding between the body 2 and the side members 3 and 4, for example, "Nittite HT-1729", "Nittite HT-766" ( All trade names are made of Nitta gelatin). Table 2 shows the properties and others.

[0043]

[Table 2]

Examples of the recording material stored in the feed magazine 1 include, for example, photographic photosensitive film, photographic printing paper, non-silver salt type photosensitive recording material, heat-sensitive recording material, photosensitive heat-sensitive recording material, and recording material And an image receiving paper.

As the base material of the recording material, for example, polyester film, polyacetate film,
And synthetic paper, paper-based film and the like. As an example of the size of these bases, the base thickness is, for example, 25 to 300.
μm. The base length is, for example, 10 to 100 m,
The base width is, for example, 3.5 to 70 cm.

[0046]

As described above, the feed material magazine for recording material rolls of the present invention is integrally formed as a whole by extrusion molding using a synthetic resin, and is divided into a number of parallel walls extending in the extrusion direction. A slit-shaped outlet for extracting the recording material is provided at one of four corners extending in a longitudinal direction of a body portion of a rectangular cylinder formed of a hollow resin plate having an elongated hollow portion, and a remaining portion is provided. Since the three corners are bent along the bending line formed by the hot ruled line press to form the paper feed magazine, the recording material roll can be easily processed, has excellent strength and durability, is lightweight, and is easy to handle. It is possible to provide a paper feed magazine at low cost.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a paper feed magazine for recording material rolls of the present invention.

FIG. 2 is an external perspective view of a paper supply magazine for recording material rolls of the present invention.

FIG. 3 is an explanatory view showing a hollow resin plate.

FIG. 4 is a plan view showing a body before assembly.

FIG. 5 is an explanatory diagram showing a heat presser.

FIG. 6 is an explanatory view showing a state of processing a hinge portion.

FIG. 7 is an external perspective view illustrating a supply mode of a recording material.

FIG. 8 is an explanatory view showing a state after opening of FIG. 8;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Paper feed magazine 2 Body part 3,4 Side member 5 Recording material roll 11 Hollow resin plate 15a-15h Bending line 21 Heat presser 33,34 Rotating core

Claims (5)

[Claims] 1. A square tube formed of a hollow resin plate having a plurality of elongated hollow portions separated from each other by a plurality of parallel partition walls extending in the extrusion direction and integrally formed by extrusion molding of a synthetic resin. For a rectangular recording material roll comprising a body portion and a side surface portion covering both open ends of the body portion, and rotatably storing therein a recording material roll in which a sheet-like recording material is wound around a core. In a paper feeding magazine, a slit-shaped outlet for drawing out the recording material is provided at one of four corners extending in the longitudinal direction of the body, and the remaining three corners are formed by a hot ruled line press. A paper feed magazine for recording material rolls formed by folding along a line. 2. The method according to claim 1, wherein one of the two plate-like portions sandwiching the hollow portion of the hollow resin plate is cut, and at least one hinge portion connected only by the other plate-like portion is formed. The paper feed magazine for a recording material roll according to claim 1. 3. The cutting edge angle of the hot crease press is 70 °.
3. The paper feed magazine for recording material rolls according to claim 1, wherein the angle is about 150 [deg.]. 4. The paper feed magazine for a recording material roll according to claim 1, wherein at least one of the bending lines is a curve curved inward of the body. . 5. The paper feed magazine for a recording material roll according to claim 1, wherein the hollow resin plate is entirely extruded from polypropylene and integrally formed.